Latourell Falls which is about 250 feet reveals an example of columnar basalt from volcanic lava flows. The panorama was taken with a Canon 40D using exposure autobracketing. The exposures were fused in Photomatix Pro 3.2 using the adjust method. It was stitched using Autopano Giga 2.03 using the regular detection method instead of the gigapan import because the results were better. Note that if I use a 16 bit workflow that I can render the same stitch twice with exposure set for the main portion in one render and the sky in another render and then blend the top region using a mask with a gradient. I can also use the selection method, but it is problematic with the outline of the trees. The Photomatix details enhancer TMO leaves halos which would require some adjustment of parameters.